president obama took an aerial tour of the hurricane sandy destruction, meeting with families still trying to recover on staten island. Later, and in private, he met with the parents of the two young boys who were killed in that storm. And we have learned of an aftershock from the storm which will affect everyone coast to coast. Abc's steve osunsami with the surprising consequence of the storm. Reporter: When those awful flood waters from sandy came rushing through, flooding streets and swamping homes, what no one expected was the storm's surprising second hit. We all lost our cars. At the same time, we're all trying to get a car. It's a mad house. Reporter: More than 250,000 personal vehicles were Today, used car dealerships are busy with storm victims and, adding insult to injury, prices are shooting up because of the storm. We're expecting to see higher prices of $700 to $1,000 per vehicle. Reporter: For every six people who walk into this used car dealership on staten island to buy a used car, five of them lost cars to the storm. Michelle and thomas lupari just bought a used mini van that can withmiles. I need a car. I have to go to work tomorrow. So -- I'm kind of stuck. Reporter: It was a happy moment -- sign the bottom. Reporter: But costly, too. We had hoped to get something under $10,000, I winded up spending $13,000. Reporter: Nancy zito lost two cars. Today, she can only afford one. Right now between repairs and everything else that's going on, we just don't have the money. Reporter: And it's not just the hurricane zone. Experts believe used car prices will rise across the country, as dealerships in new york and new jersey drain supply. Michael deville manages a dealership in los angeles. The east coast dealers are going to have to buy used cars, so they're going to come over here to buy used cars and that will cause a price increase. Reporter: And there's another problem. You can see it in all of these flooded cars that line up and down the street that were flooded by the east river just a block away. How do you keep these rusting, rotted cars from winding up on used car lots across the country? Experts say if you are going to buy a used car, you should look for moisture, sand and leaves. Even take out the spare tire and look there, if you have to.

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